KR101550009B1 - Infiltrative liquid waterproofing agent, Producing method thereof and structing method for waterproof using thereof - Google Patents
Infiltrative liquid waterproofing agent, Producing method thereof and structing method for waterproof using thereof Download PDFInfo
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- KR101550009B1 KR101550009B1 KR1020150094571A KR20150094571A KR101550009B1 KR 101550009 B1 KR101550009 B1 KR 101550009B1 KR 1020150094571 A KR1020150094571 A KR 1020150094571A KR 20150094571 A KR20150094571 A KR 20150094571A KR 101550009 B1 KR101550009 B1 KR 101550009B1
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- monomer
- water
- waterproofing agent
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- 238000004078 waterproofing Methods 0.000 title claims abstract description 85
- 239000007788 liquid Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 69
- 239000000178 monomer Substances 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000000839 emulsion Substances 0.000 claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 claims abstract description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 13
- -1 acryl Chemical group 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 150000002148 esters Chemical group 0.000 claims abstract description 7
- 150000001408 amides Chemical class 0.000 claims abstract description 6
- 239000004567 concrete Substances 0.000 claims description 26
- 239000005871 repellent Substances 0.000 claims description 25
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 23
- 239000004568 cement Substances 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 17
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- 238000006116 polymerization reaction Methods 0.000 claims description 15
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- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 10
- 239000003995 emulsifying agent Substances 0.000 claims description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 8
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- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 5
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- KBLWLMPSVYBVDK-UHFFFAOYSA-N cyclohexyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCC1 KBLWLMPSVYBVDK-UHFFFAOYSA-N 0.000 claims description 4
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 claims description 4
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 claims description 4
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 claims description 3
- NZIDBRBFGPQCRY-UHFFFAOYSA-N octyl 2-methylprop-2-enoate Chemical compound CCCCCCCCOC(=O)C(C)=C NZIDBRBFGPQCRY-UHFFFAOYSA-N 0.000 claims description 3
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- 239000012855 volatile organic compound Substances 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
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- 230000008961 swelling Effects 0.000 abstract 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 13
- 239000005038 ethylene vinyl acetate Substances 0.000 description 13
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 13
- 230000035699 permeability Effects 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 7
- 230000035515 penetration Effects 0.000 description 7
- 230000002940 repellent Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 6
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- 239000011083 cement mortar Substances 0.000 description 4
- 239000003999 initiator Substances 0.000 description 4
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- 239000003112 inhibitor Substances 0.000 description 3
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- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
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- 235000000126 Styrax benzoin Nutrition 0.000 description 1
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- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
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- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000005599 alkyl carboxylate group Chemical group 0.000 description 1
- 239000012874 anionic emulsifier Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
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- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 238000006703 hydration reaction Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012875 nonionic emulsifier Substances 0.000 description 1
- DNPFOADIPJWGQH-UHFFFAOYSA-N octan-3-yl prop-2-enoate Chemical compound CCCCCC(CC)OC(=O)C=C DNPFOADIPJWGQH-UHFFFAOYSA-N 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/483—Polyacrylates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
The present invention relates to a water-repellent liquid-repellent agent, a method of manufacturing the same, and a method of manufacturing the same. More particularly, the present invention relates to a water-repellent liquid-repellent agent containing an acrylic emulsion having a strong point- A liquid waterproofing agent, a manufacturing method thereof, and a construction method.
Concrete is a porous construction material in which small capillary voids of 10 to 10 탆 in size are present from large bubbles having a diameter of 0.1 to 50 mm and fine capillary voids having a width of 0.3 mm or less There are a myriad of cracks.
Since such pores and cracks may become a pathway for penetrating external moisture and deterioration materials, the durability of the concrete structure may be deteriorated. Therefore, in order to secure long-term durability, a waterproof and deterioration inhibiting material is applied to the surface of the concrete, It is required to prevent penetration of deteriorated substances and the like into the furnace.
For this purpose, organic water-repellent agents such as epoxy-based or polyurethane-based agents have been widely used as waterproofing and deterioration inhibiting substances to be applied to the surface of concrete. However, since such organic waterproofing agents are vulnerable to external environmental conditions such as ultraviolet rays, And the elastic modulus and shrinkage and expansion ratio differ from concrete, and there are many problems in actual use such as peeling or lifting as time passes.
In order to solve these problems, a water absorption inhibitor capable of penetrating into the concrete and forming a tight waterproof layer was additionally applied to the surface of the concrete. However, such a water absorption inhibitor is a product imported from abroad, As the particle size is more than 1 ㎛, it penetrates deeper into the concrete and fails to penetrate into concrete, thus blocking moisture, increasing surface strength, and blocking deteriorating materials.
Recently, as an effective waterproofing method for application to concrete, liquid waterproofing using cement has been carried out.
The liquid waterproofing method using cement has been widely applied to the bathroom, the veranda, the balcony, the utility room, and the basement. In the liquid waterproofing method using cement, the waterproofing cement made by mixing the liquid waterproofing agent having resistance against permeability and absorption with cement mortar or cement It is a waterproofing method to prevent leakage of structure by constructing waterproof layer on mortar or waterproof cement paste concrete, which is a floor, wall and ceiling.
The cement liquid waterproofing is a method of forming a watertight organic or inorganic waterproof layer on the base of the concrete structure by adding a cement mortar mixed with an organic waterproofing agent such as fatty acid, fatty acid salt, asphalt emulsion, Since the constituent material has a characteristic that cement and water react with water, cement, and a waterproofing liquid, it is advantageous in that it can be applied to a wet or somewhat uneven surface, and the finish is simple. However, the waterproof layer itself tends to crack There is a disadvantage.
Recently, the structures to be constructed are not very coarse and rough because the surface of the structure is not rough but after the concrete is cured after the concrete is cured, it is very difficult to apply waterproofing to the surface of the structure with the cement mortar to form a plaster or a waterproof layer . Particularly, since the liquid waterproofing agent that has appeared until now is weak in adhesion, if the waterproofing is applied to the bottom surface by the cement liquid waterproofing method, the waterproof layer does not fall off from the surface of the structure at the time of construction, but after the waterproof layer is peeled or lifted And when waterproofing is applied to a wall or a ceiling, the cement mortar tends to fall off without sticking to the surface of the smooth structure. Therefore, it is difficult to carry out the construction work. Therefore, before the waterproofing work, The surface of the smooth structure is separately scratched.
There have been many techniques for permeable waterproofing agents so far. For example, Korean Patent Laid-Open Publication No. 10-1992-0018161 discloses a water permeable silicone water repellent composition, Korean Patent Laid-Open No. 10-1998-0024917, 10-1999-0078673 Silicone emulsion Composition and method of water-repellent water-repellent / waterproofing agent, Korean Patent Laid-Open No. 10-2001-0064300 Sealing waterproofing agent, Korean Patent Laid-open No. 10-2001-0093323 Alkylalkoxysilane- Water repellent agent, Korean Patent Laid-Open No. 10-2003-0092860 discloses a waterproofing agent using a liquid waterproofing agent such as an alkylalkoxysilane and a permeable waterproofing agent including a polymer compound, and a method of applying the same.
However, the liquid waterproofing agent has a weak adhesive force, causing peeling or lifting between the waterproof layer and the concrete structure, as well as poor strength and water tightness of the waterproofed cured body.
In order to overcome such disadvantages, Korean Patent No. 10-1400065 proposes an infiltrating liquid waterproofing agent composed of a modified acrylic emulsion, an ethylene glycol resin, an epoxy resin, a silicone resin, etc. However, it has a drawback in that it is weak to ultraviolet rays and poor in air permeability .
Therefore, the adhesion between the waterproof layer and the concrete structure is excellent, so that peeling and lifting phenomenon do not occur, and a waterproofing agent which is not vulnerable to ultraviolet rays but also has excellent air permeability is required.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the disadvantages of the penetration liquid type waterproofing agent and to provide a multi-functional microcell structure with silicone-based EVA (ethylene vinyl acetate) resin having resistance to plastic deformation and cracking and excellent waterproofing By using an acrylic emulsion having a water-repellent, water-repellent, water-repellent, and water-insoluble acrylic emulsion.
In addition, it is possible to form a semi-permanent waterproof layer by uniformly penetrating the inner cavity of the concrete to form a dense concrete structure, and it is possible to form a waterproof layer with excellent penetrability by having excellent adhesion strength to the subsequent process such as tile, Thereby providing a waterproofing agent.
In addition, it is a simple method to complete the waterproofing work on the concrete structure by using such an infiltrating liquid waterproofing agent.
In order to achieve the above object, the present invention provides an emulsion comprising a water-soluble acrylic polymer, a silicone EVA resin, and a monofunctional unsaturated monomer, wherein the water-soluble acrylic polymer comprises an acrylic monomer, glycidyl Wherein the monofunctional unsaturated monomer is an ester containing a hydroxy group, an amide containing a hydroxy group, or a mixture thereof, wherein the monofunctional unsaturated monomer is a monofunctional monomer, .
Wherein the permeable liquid waterproofing agent comprises a polymer having a double structure of an inner layer and an outer layer, wherein the inner layer is a water-soluble acrylic polymer and the outer layer is a silicone EVA resin.
The acrylic monomer may be selected from the group consisting of methyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, cyclohexyl acrylate, methyl methacrylate ), Ethyl methacrylate, buthyl methacrylate, and octyl ethacrylate. The functional monomer containing the glycidyl group may be at least one selected from the group consisting of glycidyl Wherein the copolymerizable monomer is at least one selected from the group consisting of glycidyl methacrylate and glycidyl methacrylate ether, and the copolymerizable monomer is at least one selected from the group consisting of acrylic acid, crotonic acid, styrene, - methylstyrene (? -Methylstyrene).
The method comprises the steps of: polymerizing an acrylic monomer, a functional monomer containing a glycidyl group, a copolymerizable monomer in the presence of deionized water, an emulsifier, a polymerization initiator, a polymerization accelerator, and a neutralizing agent; Adding a silicone EVA resin to the emulsion and suspending and polymerizing the emulsion at 80 to 90 캜 to form a polymer having a double structure, and adding a monofunctional unsaturated monomer to the emulsion containing the polymer having the double structure to mix And the monofunctional unsaturated monomer is an ester containing a hydroxy group, an amide containing a hydroxy group, or a mixture thereof.
The method includes the steps of arranging a base surface of a concrete, applying a waterproof paste by mixing an infiltrating liquid waterproofing agent, cement, and water on the cleaned surface, and applying the waterproof paste to the applied primary waterproof paste Applying a waterproofing liquid obtained by mixing an infiltrating liquid waterproofing agent and water, applying a waterproof paste by mixing the applied waterproofing liquid with an infiltrating liquid waterproofing agent, cement and water, and applying a second waterproofing agent And applying a waterproof mortar to the paste.
According to the present invention, it is possible to form a waterproof layer having excellent adhesion strength, permeability, water permeability and skid resistance to a structure, and thus semi-permanent use is possible, so that maintenance cost of the waterproof layer can be reduced, There is an advantage of increasing the durability.
In addition, since the adhesive strength to the subsequent process is also excellent after the waterproof layer is applied, it is possible to apply the adhesive without any volatility, and there is an advantage that no environmental pollution is caused by not using the volatile organic compound.
1 is a process diagram showing a construction method according to the present invention.
2 is a view schematically showing a construction structure according to the present invention;
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a configuration and an operation of an embodiment of the present invention will be described in detail. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
The penetrating liquid water repellent agent according to the present invention comprises a water-soluble acrylic polymer, a silicone EVA resin, and a monofunctional unsaturated monomer.
First, the water-repellent liquid repellent agent of the present invention comprises a polymer having a double structure in which a water-soluble acrylic polymer is disposed on the inner layer and a silicone EVA resin is disposed on the outer layer. The monofunctional unsaturated monomer is mixed with the polymer having such a double structure.
The water-soluble acrylic polymer constituting the inner layer serves to improve adhesion and solvent resistance and also to improve hardness, and is intended to improve adhesiveness and vulnerability to ultraviolet rays, which are problems of conventional resin type waterproofing agents.
Such a water-soluble acrylic resin polymer is a polymer obtained by polymerizing an acrylic monomer, a functional monomer containing a glycidyl group, and a copolymerizable monomer, and has a structure of a fine cell. Such an acrylic resin polymer is preferably contained in an amount of 100 to 150 parts by weight of a functional monomer containing a glycidyl group and 30 to 50 parts by weight of a copolymerizable monomer based on 100 parts by weight of the acrylic monomer.
The polymerization of such a polymer is further carried out in a state of containing 520 to 560 parts by weight of deionized water, 4 to 20 parts by weight of an emulsifier, 1 to 2 parts by weight of a polymerization initiator, 2 to 3 parts by weight of a polymerization promoter and 3 to 5 parts by weight of a neutralizing agent . The emulsifier, the polymerization initiator, the polymerization promoter, the neutralizing agent, etc. used in the present invention are well known in the art, and a detailed description thereof will be omitted. As an example of such an emulsifier, a weak anionic emulsifier and a nonionic emulsifier may be used together.
Examples of the acrylic monomer include acrylic acid esters such as methyl acrylate, butyl acrylate, 1-ethylhexyl acrylate, cyclohexyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate and octyl methacrylate. And at least one selected from the group consisting of glycidyl methacrylate and glycidyl methallyl ether may be used as the functional monomer containing the glycidyl group. The copolymerizable monomer may be acrylic acid, crotonic acid, Styrene, and? -Methylstyrene may be used, but the practice thereof is not limited.
The silicone EVA resin located in the outer layer of the double structure is for improving the strength, adhesion and waterproofness of the waterproof layer. When only the conventional silicone EVA resin alone is used, the waterproof property is excellent, but the adhesive property and rigidity are poor In the present invention, when a water-soluble acrylic polymer is used in combination with a copolymerized acrylic copolymer having a microcell structure, microcrystalline particles are formed at a time when internal alkaline water is generated while maintaining the self- The microcell structure is destroyed to obtain the adsorption of the unreacted materials and the waterproofing effect of adhesion, to prevent the internal void formed between the hydration reactions, to secure the compounding stability, the winter season performance, the elasticity and the water resistance.
At this time, the silicone EVA resin is preferably used in an amount of about 10 to 100 parts by weight based on 100 parts by weight of the acrylic monomer constituting the acrylic polymer. If the amount is too small, Mechanical properties such as stiffness may be deteriorated.
As the monofunctional unsaturated monomer to be blended with the polymer having the double structure, an ester containing a hydroxy group, an amide containing a hydroxy group, or a mixture thereof may be used. In the case of such monofunctional unsaturated monomer, It not only solves the problem of non-ventilation, which is a problem of the structure, but also makes the waterproof performance even better.
The monofunctional unsaturated monomer preferably contains about 200 to 300 parts by weight based on 100 parts by weight of the acrylic monomer. When the amount of the monofunctional unsaturated monomer is too small, sufficient air permeability can not be ensured. If the amount is too large, And the like.
The waterproofing agent of the present invention may further include preservatives, rust inhibitors, dispersants, antifoaming agents, curing retardants and the like, but the present invention is not limited thereto. It is of course also possible to add various kinds of additives known in the art.
The water-repellent liquid repellent agent of the present invention having the above-described structure is an environment-friendly product free from the emission of volatile organic compounds (VOCs), and can be applied without any hesitation since it has excellent adhesion strength with subsequent processes such as tile, , And uniformly penetrates into the pores of concrete to form dense concrete structure, so that it can be used semi-permanently.
Hereinafter, a method for producing the above-mentioned penetrating liquid waterproofing agent will be described.
Polymerizing a functional monomer containing an acrylic monomer, a glycidyl group and a copolymerizable monomer in the presence of deionized water, an emulsifier, a polymerization initiator, a polymerization promoter and a neutralizing agent.
First, an acrylic monomer, a functional monomer containing a glycidyl group, and a copolymerizable monomer are polymerized in the presence of deionized water, an emulsifier, a polymerization initiator, a polymerization accelerator, and a neutralizing agent.
The emulsifier is not particularly limited as long as it is generally used, and examples thereof include polyoxyethylene nonylphenyl ether, long chain alkyl carboxylate, sulfosuccinic acid alkyl ester salt, alkylbenzene sulfonic acid salt and the like, Is used. Examples of the polymerization initiator include, for example, an inorganic initiator such as persulfate and nitrate, or an oxidation-reduction initiator in combination with a sulfite, an organic hydroperoxide-ferrous salt, an organic hydroperoxide-sodium formaldehyde sulfoxylate An initiator such as an oxidation-reduction initiator, benzoyl peroxide, and azobisisobutyronitrile may be used.
The polymerization accelerator may be a known one. Examples of the polymerization accelerator include N, N-dimethylaniline, tetrahydroquinoline, triethylamine, benzoin + iron salt, monoamine, polyamine, ferric sulfate and triethanolamine.
The polymerization temperature is not limited, and the polymerization time may be enough to homogenize the PS to 1 to 3 占 퐉 in about 1 to 7 hours.
Adding a silicone EVA resin to an emulsion containing the polymerized acrylic polymer, and suspending and polymerizing at 80 to 90 캜 to form a polymer having a double structure.
When the polymerization is completed, silicone EVA resin is added to the emulsion containing the polymerized acrylic polymer and subjected to suspension polymerization at 80 to 90 캜. The polymerization time is about 1 to 7 hours.
Adding the monofunctional unsaturated monomer to the emulsion containing the polymer having the double structure and mixing.
Finally, the monofunctional unsaturated monomer is directly introduced into the emulsion containing the polymer having the above-mentioned structure and mixed to complete the preparation of the water-repellent liquid-repellent agent.
As described above, in the case of the infiltrating liquid waterproofing agent prepared as described above, it is excellent in water resistance and permeability as well as adhesive property and air permeability.
Hereinafter, a method of constructing an infiltrating liquid waterproofing agent of the present invention will be described with reference to FIGS. 1 and 2 attached hereto.
As shown in FIG. 1, the method of the present invention includes a step of arranging a base surface of concrete, and a step of first coating a waterproof paste prepared by mixing an infiltrating liquid waterproofing agent, cement, Applying a waterproofing liquid obtained by mixing the applied primary waterproof paste with an infiltrating liquid waterproofing agent and water; and applying a waterproof paste obtained by mixing the applied waterproofing liquid with an infiltrating liquid waterproofing agent, cement, And applying a waterproof mortar to the applied secondary waterproof paste.
A step of arranging the base of the concrete.
First, remove soil, dirt, sand, gravel and laitance from the base of the concrete structure and wash it thoroughly with water or other methods.
A step of firstly coating a waterproof paste obtained by mixing an infiltrating liquid waterproofing agent, cement and water on the cleaned surface.
Next, a waterproof paste is prepared by mixing the above-mentioned infiltration type liquid waterproofing agent, cement, and water described above in a weight ratio of about 1:70 to 90: 18 to 20, and the waterproof paste is applied using waterproofing ratios and rollers . At this time, the thickness of the coating is not limited, but it is preferably as thin as 0.1 to 1 mm.
Applying a waterproofing liquid obtained by mixing the applied primary waterproof paste with an infiltrating liquid waterproofing agent and water.
The waterproofing liquid obtained by mixing the applied primary waterproof paste with the water permeable liquid repellent and water in a ratio of 1:25 to 35 is applied by waterproofing or the like. At this time, there is no limitation on the amount of application, so that the waterproofing liquid suffices to sufficiently wet the primary waterproof paste and is applied before the curing of the primary waterproof paste.
A second step of applying a waterproof paste obtained by mixing the applied waterproofing liquid with an infiltrating liquid waterproofing agent, cement and water.
Next, the applied waterproofing liquid is mixed with water-repellent liquid waterproofing agent, cement, and water at a weight ratio of 1:70 to 90:18 to 20, and the waterproof paste is secondarily applied. At this time, the second coating is also applied in the same manner as the first coating, and its thickness is not limited, and it is applied as thin as possible to about 0.1 to 1 mm. It is preferable that the application of the secondary paste is carried out before the waterproofing liquid is completely cured after application and penetration of the waterproofing liquid.
Applying the waterproof mortar to the applied second waterproof paste.
Further, a waterproof mortar is further applied to the applied second waterproof paste, and the waterproof mortar means that sand is added to the second waterproof paste. At this time, the thickness of the waterproof mortar is preferably about 5 to 10 mm.
The penetration type liquid waterproofing agent of the present invention thus constructed is excellent in waterproof effect and excellent in adhesion performance and has no lifting phenomenon, and is excellent in adhesion with tiles used in the finishing process, thus being easy to apply.
Hereinafter, the present invention will be described by way of specific examples.
(Example 1)
50 parts by weight of methyl acrylate, 50 parts by weight of butyl acrylate, 120 parts by weight of glycidyl methacrylate, 50 parts by weight of acrylic acid, 560 parts by weight of deionized water, 10 parts by weight of emulsifier, 1 part by weight of polymerization initiator, And 3 parts by weight of a neutralizing agent were mixed and polymerized for 5 hours. Then, 80 parts by weight of a silicone-based EVA resin was added in accordance with the continuous multi-stage polymerization method and polymerization was carried out at 90 DEG C for 5 hours. Then, 200 parts by weight of an ester containing a hydroxy group was added thereto and mixed to prepare an impermeable liquid waterproofing agent.
(Comparative Example 1)
As a comparative example 1, a commercially available liquid-repellent liquid repellent agent of company A was purchased and used.
The penetration depth was measured according to KSF 4930 standard in order to evaluate the permeability, adhesive strength and waterproofing property of the penetrating liquid waterproofing agent of the present invention. In Example 1 according to the KSF2451 standard, waterproofing agent 1: cement 80: water 19, 1 was prepared by mixing waterproofing agent 15: cement 65: water 20. After 24 hours, it was demolded, cured for 10 days, permeability and absorption test were conducted, and adhesion strength test was conducted according to KSF4918.
The results are shown in Table 1 below.
5 hours
24 hours
0.17
0.18
0.48
0.53
As can be seen from the above Table 1, it was confirmed that not only the water absorption ratio and the water permeability ratio were low, the depth of penetration was deep, the water resistance was excellent, and the adhesive strength was remarkably high.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Various modifications and variations will be possible without departing from the spirit of the invention. Therefore, the scope of the present invention should be construed as being covered by the scope of the appended claims, and technical scope within the scope of equivalents thereof should be construed as being included in the scope of the present invention.
Claims (6)
Wherein the water-soluble acrylic polymer comprises an acrylic monomer, a functional monomer containing a glycidyl group, a copolymerizable monomer,
Wherein the monofunctional unsaturated monomer is an ester containing a hydroxy group, an amide containing a hydroxy group, or a mixture thereof.
Wherein the permeable liquid waterproofing agent comprises a polymer having a double structure of an inner layer and an outer layer,
Wherein the inner layer is a water-soluble acrylic polymer,
Wherein said outer layer is a silicone EVA resin.
The acrylic monomer is at least one selected from the group consisting of methyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, cyclohexyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate and octyl methacrylate ,
The functional monomer containing the glycidyl group is at least one selected from glycidyl methacrylate and glycidyl methallyl ether,
Wherein the copolymerizable monomer is at least one selected from the group consisting of acrylic acid, crotonic acid, styrene, and? -Methylstyrene.
Introducing a silicone EVA resin into an emulsion containing the polymerized acrylic polymer, and suspending and polymerizing the emulsion at 80 to 90 캜 to form a polymer having a double structure;
Adding a monofunctional unsaturated monomer to an emulsion containing the polymer having the double structure to form a monomer,
Wherein the monofunctional unsaturated monomer is an ester containing a hydroxy group, an amide containing a hydroxy group, or a mixture thereof.
The acrylic monomer is at least one selected from the group consisting of methyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, cyclohexyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate and octyl methacrylate ,
The functional monomer containing the glycidyl group is at least one selected from glycidyl methacrylate and glycidyl methallyl ether,
Wherein the copolymerizable monomer is at least one selected from the group consisting of acrylic acid, crotonic acid, styrene, and? -Methylstyrene.
A first step of applying a waterproof paste prepared by mixing an infiltrating liquid waterproofing agent, cement and water to the cleaned surface,
Applying a waterproofing liquid obtained by mixing the applied primary waterproof paste with an infiltrating liquid waterproofing agent and water,
A second step of applying a waterproof paste obtained by mixing the applied waterproofing liquid with an infiltrating liquid waterproofing agent, cement and water,
Applying a waterproof mortar to the applied second waterproof paste,
Wherein the water-repellent liquid-repellent agent is one of the items of claims 1 to 3.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101744766B1 (en) * | 2016-06-22 | 2017-06-09 | 유한회사 금영토건 | Waterproofing method using self-adhesive non-woven fabric waterproofing sheet laminated with organic and inorganic hybrid water proofing material |
| KR102079569B1 (en) * | 2019-08-06 | 2020-02-21 | (주)페트로산업 | Water soluble acrylic composition with waterproof function, waterproof sheet including the same and waterproof method using the same |
| KR102146337B1 (en) * | 2020-03-09 | 2020-08-20 | 대성방수시스템(주) | Constructing method for waterproof and improved durability of concrete structures using infiltrative liquid waterproofing agent |
| KR102280015B1 (en) | 2020-12-02 | 2021-07-20 | 김동춘 | Eco-friendly hydration reaction-hardening inorganic binding concrete integrated organic and inorganic hybrid complex waterproofing sheet and the waterproofing method using the same |
| KR102341122B1 (en) * | 2021-06-01 | 2021-12-21 | 주식회사 건향알앤디 | Liquid waterproof agent manufacturing method and waterproof method using thereof |
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| KR101400065B1 (en) | 2013-01-08 | 2014-05-28 | 강충모 | Constructing method for waterproof using infiltrative liquid waterproofing agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101400065B1 (en) | 2013-01-08 | 2014-05-28 | 강충모 | Constructing method for waterproof using infiltrative liquid waterproofing agent |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101744766B1 (en) * | 2016-06-22 | 2017-06-09 | 유한회사 금영토건 | Waterproofing method using self-adhesive non-woven fabric waterproofing sheet laminated with organic and inorganic hybrid water proofing material |
| KR102079569B1 (en) * | 2019-08-06 | 2020-02-21 | (주)페트로산업 | Water soluble acrylic composition with waterproof function, waterproof sheet including the same and waterproof method using the same |
| KR102146337B1 (en) * | 2020-03-09 | 2020-08-20 | 대성방수시스템(주) | Constructing method for waterproof and improved durability of concrete structures using infiltrative liquid waterproofing agent |
| KR102280015B1 (en) | 2020-12-02 | 2021-07-20 | 김동춘 | Eco-friendly hydration reaction-hardening inorganic binding concrete integrated organic and inorganic hybrid complex waterproofing sheet and the waterproofing method using the same |
| KR102341122B1 (en) * | 2021-06-01 | 2021-12-21 | 주식회사 건향알앤디 | Liquid waterproof agent manufacturing method and waterproof method using thereof |
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